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J. A. ADAMS.

MACHINE POR MAKING EXGELSI'OR.

(No Model.)

Patented Mar. 22, 1887.

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UNITED STATES PATENT OFFICE.

JAMES A. ADAMS, OF ATLANTA, `GEORGIA.

MACHINE FOR MAKING EXCELSIOR.

SPECIFICATION forming part of Letters Patent No. 359,657, dated March22, 1887.

Application filed July 8, 1886. Serial No. 207,515. (No model) citizenof the United States of America, residing at Atlanta, in the county ofFulton and State of Georgia, have invented certain new and usefulImprovements in Machines for Making Excelsior; and I do hereby declarethe following to be a full, clear, and exact description of theinvention, such as will enable others skilled in the art to which itappertains to make and use the same, reference being had to theaccompanying drawings. and to letters or gures of reference markedthereon, which form a part of this specication.

This invention is an improvement in machines for making the articleknown in commerce as excelsior5 and it consists in a combination ofplain and notched knives and devices for holding the wood to be cnt, aswill be hereinafter fully described.

In the accompanying drawings, Figure I is a perspective view of themachine. The machine being a double one, one part is shown with a blockof wood in position and the other y part with the block removed. Fig. IIis a side view, partly'in section, of the arm that carries the block tobe cut. Fig. III is a cross-section through this arm and the clampingdevice on the line xy. Fig. IV is the face, Fig. V is a section, andFig. VI is the back, of the cutting slide or plane. Fig. VII shows theback of the notched knife. Fig. VIII- shows the swivel-jointedconnection of the pitman with the plane.

Similar letters refer to similar parts.

In the drawings is shown a machineframe that may be of any constructionor material adapted to carry the parts hereinafter described. On thisframe, as shown,are holsters, to which are attached the rear ends of thesprings A. To the other ends of the springs A are att-ached the arms aand a', which are provided with dogs l and 2 to clamp and hold the woodto be cut by piercing the ends in the usual manner, the dog l beingmoved by the screw 3, which carries the dog with it by reason of passingthrough the lugs on it, and being provided with the collars 4. The dogslhave a bearing on their upper sides against the arms a and c', and areheld in that position about equal length.

by the screw 3, which passes through the strap 5 on the end ofthe armsand has a second bearing in the other end of the mortise.

Clamped by the dogs on the arm a is shown a piece ofwood, w, which isbeing held in position for cutting and rests on the cuttingplane B. Thecutting7plane B is shown with the wood removed from the machine. Thesecutting-planes are each provided with two knives, one knife, b, in eachbeing plain or smooth on its edge. The other, b', is recessed, havingalternate short edges and spaces of The knives b are set higher thanthose marked b, for the purpose of cutting into the Wood sufficientlydeep to prevent the planeknife from cutting except on the portion whichis left by the spaces on the knife b. These knives are held firmly ontheir seats by capscrews s. As the knives b cut only on such parts ascome opposite the spaces on the knives b', the slots in both knives aremade wider than would accommodate the screws for the purpose of allowingadjustment to bring, at any time, the unworn parts of the knives b intouse. For the purpose of raising the knives while the screws s hold themwith sufficient firmness, the plates l? abut at one end on the knivesand at the other on the back of the plane, and through them passadjusting-screws p. The planes run in ways consisting of the topedges ofthe box-shaped frame F and the top and edge guides f, and arereciprocated by the cranks (l and C on a shaft journaled to the rear endof the frame. The pitmen R and R have on their front ends, and forming aconnection with the lugs on the planes, a swivel, S, for allowing theplane, after one of the guides has been taken off, to be turned over forthe purpose of removing or adjusting the knives. f

The springs A keep any desired pressure on the arms aand a', which`pressure can be regulated by placing liners under the ends or middle ofthe springs as required.

The arms may be raised to remove or replace lthe wood to be cut, or forany other purpose,

by the levers L, which are pivoted on an upper cross-beam of the frame,and are connected at their rear ends by hails m, and when the arms areraised they are held up by placing the front ends under the hooks m.

It is obvious that it is not necessary to the successful operation ofthe machine to have a double set of holders and cutters; but it ispreferable, as by setting thc cranks opposite there is less vibrationfrom the reciprocating parts of the machine.

Having thus described my invention, what I claim as new, and desire tosecure by Letters Patent, is-

l. In an excelsior-nlachine, a reciprocating plane provided with theknives b and b', cutting in opposite directions, said plane connccted bya swivel to its operating-pitman and sliding in guides, one of which isremovable to allow the plane to be turned upon its edge for the purposeof adjusting the knives, the parts being combined and arranged Substantially as specified.

2. In an excelsior -1nachinc, a clamp for holding the wood to be cut,consisting of the stationary dog 2, the movable dog l, provided withlugs through which passes the screw 3, which also passes through and hasa thread 25 in the strap 5, and collars 4, and arrn a, connected withthe machine-frame by the springs A, substantially as shown, and for thepurpose specified.

3. In an eXcelsior-niachine, the crank C, 3o the crank-pitman, and planeB, connected by a swivel, S, to allow the plane to be turned upon itsedge, in combination with the springarms carrying the dogs 1 2, forholding the blocks XV in contact with the plane, and the 3 5 lever L,arranged to raise said springarms,and block-holding devices to allow theremoval or replacement of the blocks XV, all substantially as shown anddescribed.

In testimony whereof I aflixlny signature in 4o presence of twowitnesses.

JAMES A ADAMS.

Vilnesses:

LoUIs NEWELT, LEWIS Rnnwnvn.

